nfs-utils: Add support to svcgssd to limit the negotiated enctypes

[nfs-utils.git] / utils / gssd / gss_util.c

diff --git a/utils/gssd/gss_util.c b/utils/gssd/gss_util.c
index 2d66be9b9005c0b7601baa0340885bc5a868cf6e..ca27d61cd98135c2c9d4e6360a9b70ee08041e70 100644 (file)
--- a/utils/gssd/gss_util.c
+++ b/utils/gssd/gss_util.c
@@ -57,7 +57,11 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
-#include "config.h"
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif /* HAVE_CONFIG_H */
+
 #include <errno.h>
 #include <stdio.h>
 #include <ctype.h>
@@ -134,6 +138,83 @@ display_status_1(char *m, u_int32_t code, int type, const gss_OID mech)
        }
 }
 #endif
+static char *
+gss_display_error(OM_uint32 status)
+{
+               char *error = NULL;
+
+               switch(status) {
+               case GSS_S_COMPLETE: 
+                       error = "GSS_S_COMPLETE";
+                       break;
+               case GSS_S_CALL_INACCESSIBLE_READ: 
+                       error = "GSS_S_CALL_INACCESSIBLE_READ";
+                       break;
+               case GSS_S_CALL_INACCESSIBLE_WRITE:
+                       error = "GSS_S_CALL_INACCESSIBLE_WRITE";
+                       break;
+               case GSS_S_CALL_BAD_STRUCTURE:
+                       error = "GSS_S_CALL_BAD_STRUCTURE";
+                       break;
+               case  GSS_S_BAD_MECH:
+                       error = "GSS_S_BAD_MECH";
+                       break;
+               case  GSS_S_BAD_NAME:
+                       error = "GSS_S_BAD_NAME";
+                       break;
+               case  GSS_S_BAD_NAMETYPE:
+                       error = "GSS_S_BAD_NAMETYPE";
+                       break;
+               case  GSS_S_BAD_BINDINGS:
+                       error = "GSS_S_BAD_BINDINGS";
+                       break;
+               case  GSS_S_BAD_STATUS:
+                       error = "GSS_S_BAD_STATUS";
+                       break;
+               case  GSS_S_BAD_SIG:
+                       error = "GSS_S_BAD_SIG";
+                       break;
+               case  GSS_S_NO_CRED:
+                       error = "GSS_S_NO_CRED";
+                       break;
+               case  GSS_S_NO_CONTEXT:
+                       error = "GSS_S_NO_CONTEXT";
+                       break;
+               case  GSS_S_DEFECTIVE_TOKEN:
+                       error = "GSS_S_DEFECTIVE_TOKEN";
+                       break;
+               case  GSS_S_DEFECTIVE_CREDENTIAL:
+                       error = "GSS_S_DEFECTIVE_CREDENTIAL";
+                       break;
+               case  GSS_S_CREDENTIALS_EXPIRED:
+                       error = "GSS_S_CREDENTIALS_EXPIRED";
+                       break;
+               case  GSS_S_CONTEXT_EXPIRED:
+                       error = "GSS_S_CONTEXT_EXPIRED";
+                       break;
+               case  GSS_S_FAILURE:
+                       error = "GSS_S_FAILURE";
+                       break;
+               case  GSS_S_BAD_QOP:
+                       error = "GSS_S_BAD_QOP";
+                       break;
+               case  GSS_S_UNAUTHORIZED:
+                       error = "GSS_S_UNAUTHORIZED";
+                       break;
+               case  GSS_S_UNAVAILABLE:
+                       error = "GSS_S_UNAVAILABLE";
+                       break;
+               case  GSS_S_DUPLICATE_ELEMENT:
+                       error = "GSS_S_DUPLICATE_ELEMENT";
+                       break;
+               case  GSS_S_NAME_NOT_MN:
+                       error = "GSS_S_NAME_NOT_MN";
+                       break;
+               default:
+                       error = "Not defined";
+               }
+       return error;
+}
 
 static void
 display_status_2(char *m, u_int32_t major, u_int32_t minor, const gss_OID mech)
@@ -171,8 +252,8 @@ display_status_2(char *m, u_int32_t major, u_int32_t minor, const gss_OID mech)
 
        if (major == GSS_S_CREDENTIALS_EXPIRED)
                msg_verbosity = 1;
-       printerr(msg_verbosity, "ERROR: GSS-API: error in %s(): %s - %s\n",
-                m, maj, min);
+       printerr(msg_verbosity, "ERROR: GSS-API: error in %s(): %s (%s) - %s(%s)\n",
+                m, gss_display_error(major), maj, min);
 
        if (maj_gss_buf.length != 0)
                (void) gss_release_buffer(&min_stat1, &maj_gss_buf);
@@ -187,7 +268,7 @@ pgsserr(char *msg, u_int32_t maj_stat, u_int32_t min_stat, const gss_OID mech)
 }
 
 int
-gssd_acquire_cred(char *server_name)
+gssd_acquire_cred(char *server_name, const gss_OID oid)
 {
        gss_buffer_desc name;
        gss_name_t target_name;
@@ -195,20 +276,25 @@ gssd_acquire_cred(char *server_name)
        u_int32_t ignore_maj_stat, ignore_min_stat;
        gss_buffer_desc pbuf;
 
-       name.value = (void *)server_name;
-       name.length = strlen(server_name);
+       /* If server_name is NULL, get cred for GSS_C_NO_NAME */
+       if (server_name == NULL) {
+               target_name = GSS_C_NO_NAME;
+       } else {
+               name.value = (void *)server_name;
+               name.length = strlen(server_name);
 
-       maj_stat = gss_import_name(&min_stat, &name,
-                       (const gss_OID) GSS_C_NT_HOSTBASED_SERVICE,
-                       &target_name);
+               maj_stat = gss_import_name(&min_stat, &name,
+                               oid,
+                               &target_name);
 
-       if (maj_stat != GSS_S_COMPLETE) {
-               pgsserr("gss_import_name", maj_stat, min_stat, g_mechOid);
-               return (FALSE);
+               if (maj_stat != GSS_S_COMPLETE) {
+                       pgsserr("gss_import_name", maj_stat, min_stat, g_mechOid);
+                       return (FALSE);
+               }
        }
 
-       maj_stat = gss_acquire_cred(&min_stat, target_name, 0,
-                       GSS_C_NULL_OID_SET, GSS_C_ACCEPT,
+       maj_stat = gss_acquire_cred(&min_stat, target_name, GSS_C_INDEFINITE,
+                       GSS_C_NO_OID_SET, GSS_C_ACCEPT,
                        &gssd_creds, NULL, NULL);
 
        if (maj_stat != GSS_S_COMPLETE) {